Get "Attachment Security Warning" when trying to open attachments. Only option is to Save to Disk or Cancel. That's really annoying. These are Word docs, pdf's, etc..
I have done the following but it does not fix the problem.
Office 2003: Use a registry editing tool to navigate to the following key:
Insert a value with the following details:
Data Type: SZ
Value Name: Level1Remove
Value: Semi-colon delimited list of file extensions you wish to allow, e.g.:
Restart Outlook for the changes to take effect.
I'm sure this key is present and correct for .doc;.xls;.pdf;.ppt
Need further suggestion. Thanks.